Die for forming metal articles



(No Model.)

IN Eg .2

Patented Feb.,25, 1890.

J R PADDAOK DIE FOR FORMING METAL ARTICLES.

npsrens. Pimo-umngmyhnr. Wash UNITED STATES PATENT OFFICE.

JAMES R. PADDACK, OF CINCINNATI, OH IO.

DIE FOR FORMING METAL ARTICLES.

SPECIFICATION forming part of Letters Patent No. 422,313,:1ated February25, 1890.

Application filed June 26, 1889 $erial No. 315,621- (No model.)

To all whom itmay concern:

Be it known that 1, JAMES R. PADDACK, a

\ citizen of the United States, residing at Cincinnati,Hamilton county,State of Ohio, have invented certain new and useful Improvements in Diesfor Forming Metal Articles, of which the following is a specification.

The primary object of the invention is an improved device for crimpingandswaging the bottom into asheet-metal vessel, curling the top with orwithout wire, and securing a handle to the same, all by a singleoperation.

The invention consists in the means whereby the above objects areattained, and it is illustrated in the accompanying drawings, in which-=Figure 1 is a vertical sectional view of my die or swaging and crimpingdevice. Fig. 2 is a perspective View of the same with the front portionof the case or shell removed. Fig. 3 is a detail view showing thejointmade at the bottom of the cup or can. Fig. 4. is also a detail Viewshowing a modification for forming a double-seam joint. Fig. 5 shows thedouble-seam joint thus formed.

Referring by letter to the drawings, A is thebasepiece or support of mydie, having recessed therein four spiral springs B B. Firmly secured tothis base by means of screws or nuts is a curling-block O, which has an-annular shoulder 0, provided with a groove having a curvedcross-section, as shown. The lower side of the curling-block is cut awayin places forthe reception of the upper ends of the coiled springs B andto form the shoulders o bearing against the upper ends of the saidsprings, so that the latter areheld inplace in the recesses of the baseA.

D is the interior swaging-block, which has a stem cl extending downwardand fitting into a recess 0 of the curling-block, in which it is free toslide. The block D is normally held in a raised position by means of thecoiled spring d, surrounding the stem d, resting upon the upper face ofthe curling-block, and bearing-against the lower face of the interiorswaging-block.

E is the outer casing of my die, surrounding all the other parts,supported by the springs B B, and resting upon a thin circular plate I)on the upper ends of said springs. The outer casing is formed of twoparts which are adapted to fit one another to complete the outer shell,and these part-s are preferably loosely hinged upon a rod F, as shown,whereby they may be readily swung open or shut and be free to movevertically upon said rod. Each part has an internal shouldered recess ateach end, the lower one embracing the curling-block and the upperreceiving the follower, and each half is also suitably notched in twoplaces upon its edge. These notches, when the parts are closed upon oneanother, form openings through the outer casing for the admission of thehandle or car to be attached to the vessel. The parts are preferablysecured in place by a tapering ring Q fitting over them.

G is the swaging-ring, in two halves or parts, each one of which isfitted into the shouldered recess of the parts of the casing E, andwhich form a continuous ring when the casing is closed. The upper faceof this ring is recessed to form an annular beveled edgey, the recessedportion of the ring between the edge y and its end being of greaterdiameter than the diameter of the main portion of the casing E, andbeing adapted to receive the vertical flange which is preferablyprovided at the edge of the blank for the bottom or cover. of thevessel.

H is a follower or external swaging-block adapted to fit within theouter casing and having an annular V-shaped rib of less diameter thanthe diameter of the body portion of the metallic vessel, the outerbeveled face to of which corresponds with the beveled face of theswaging-rings. I

In using the above-described'device in making a can or bucket I takeacylindrical body of blank form Z, of tin or other sheet metal, a bottomJ, stamped in the form shown in crosssection, Fig. 1, a handle or car,K, and a wire ring L, Fig. 1. Starting then with the body or blank Z inits position in the die-that is, slipped down over the interiorswaging-block D-and th'e curling-block O resting on the grooved annularshoulder thereof and extending a short distance above the lower bevelededge of the swaging-ring, with the wire ring L also resting on theannular shoulder of the curling-block outside the body or blank Z, andthe bottom J' resting on the swaging-ring in the position shown, withthe follower H placed on top thereof and with the ends of the handle Kinserted through the apertures in the casing, as in Fig. 2, theoperation is as follows: Pressure is applied to the follower H, forcingit downward. This action by virtue of the beveled edge to of theswaging-ring deflects inwardly the turned-up edge of the bottom, and byvirtue of the beveled ridge of the follower deflects outwardly thatportion of the.

body or blank form which extends above the lower beveled edge of theswaging-ring, as well as the projecting end of the handle, and the jointshown in detail in Fig. 3 is thereby formed. The springs B B have thusfarbeen sufficient to prevent the downward movement of the casing.Continuing the pressure, however, these springs yield, and the casingand all it's contents are forced downward, the interior swaging-block Dpreventing any lateral deflection or bulging of thebody or form. Thisaction by virtue of the grooved shoulder 0, against which the end of thebody is forced, curls outward the edge of the body around the wire andthe other projecting end of the handle. The cup is now complete and maybe removed by swinging open the casing. The above operations are allperformed by a single stroke of the press, and a perfectly water-tightjoint is obtained without the use of any solder.

It is obvious that the upper edge of the cup or other vessel may becurled without wire, and also that the cup may be formed without ahandleby simply leaving out these parts. It is also obvious that if it bedesired to put a top to fruit or other cans the same may be done byoperating 011 the upper part of the vessel only, as before described.

I have shown in Fig.4 a means for forming by a second operation adouble-seam jointin the bottom of the cup or can, if such should ever bedesired, by substituting for the follower H, after the operationdescribed, a follower of the form shown at H. In this case the verticalflat-faced flange or rib his forced down upon the edge of the can andthe joint shown in Fig. 5 is thereby formed.

Although I have illustrated my invention in connection with themanufacture of a cylindrical can, it can be used in the manufacture ofsheetanetal vessels of various kinds and of different shapes.

Having now described my invention, what I claim is- 1. A die forcrimping and swaging the bottoms onto sheetqnetal vessels at oneoperation, which consists in the combination of the base-piece uponwhich the vessel rests, a hollow die-casin g suitably mounted on thebase piece and surrotuiding the vessel, and having an interior beveledrecess near one end, and an exterior swaging block or follower adaptedto support the bottom for the vessel and hav ing a beveled facecorresponding with the beveled recess of the die-casin g, substantiallyas set forth.

2. A die for crimping and swagingbottoms onto tubular sheet-metalvessels at one operation, which consists in the combination of abase-piece or support upon which the vesselbody rests, a hollowdie-casing surrounding the vessel-body and having an interior beveledrecess at one end, opposite which the edge of the vessel-body extends,and an exterior swaging-block or follower having a rib with a beveledface corresponding to the beveled recess of the die-casing projectingfrom its face, the said rib being of less diameter than the vessel-body,whereby the edge of the vessel-body is forced outward onto the recess inthe die-casing by the exterior swaging-block, substantially as setforth.

3. A die for crimping and swagin g the bottom onto sheet metal vesselsat' a single operation, which consists in the combination of abase-piece or support, a hollow easing suitably mounted thereon andhaving an interior beveled recess near its top, an interiorswagingbloclt for preventing bulging of the vessel during the crimpingand swaging operation, held in position by a spring, and an exteriorswaging-block or follower having a beveled under surface correspondingwith that of the hollow casing, substantially as de scribed.

4. A die for curling the ends of tubular sheet-metal vessels, whichconsists in the combination of a base-piece or support, a curling blocksuitably secured thereto, having a curved annular shoulder on which theend of the vessel rests, a hollow movable casing surrounding the curling-bloclc and vertically guided thereby, and a follower for forcing theedge of the vessel down upon the curved shoulder of the cui'lingblock,substantially as described.

5. A die for curling the ends of sheet-metal vessels, consisting of thecombination of a base-piece or support, a curling-block suitably securedthereto, extending into the interior of the metal vessel, and having agrooved annular shoulder, a hollow casing surrounding the ourlingbloek,mounted upon springs in the base-piece, and capable of free vertical orlongitudinal movement, an interior vertically-movable block forpreventing bulging of the vessel during the curling operation, and anexterior block or follower II, for forcing the vessel down upon thecurling-block,

substantially as described.

6. A die for crimping and swaging the bot tom onto sheet-metal vesselsand curling the top at a single operation, consisting of the combinationof .a base-piece or support, a curling bloclr secured thereto and havinga grooved annular shoulder, a casing made up of two parts adapted to bejoined together to fornra continuous shelhmounted upon springs. in thebase-piece, capable of free vertical movement, and having a beveledrecess near its top, an interior swaging block for preventing bulging ofthe vessel during the crimping and swaging operation, and an exteriorswaging-block havinga beveled under surface corresponding with thatof'the hollow casing, substantially as described.

7. A die for crimping and swaging the bottom onto sheet-metal vessels,curling the top,- and securing an ear or handle thereto at a singleoperation, consisting of the combination of a base-piece or support, acurlingblock secured thereto and having a grooved annular shoulder, acasing made up of two parts, the parts being notched or cut away uponone edge for the reception of the ends of the handle or ear and adaptedto be joined together to form a continuous shell mounted upon springs inthe base-piece and capable of free vertical movement, a swaging-ring,also formed of two parts, fitting the upper shouldered recess of the'casing, an interior swaging-block for preventing bulging of the vesselduring the crimping and swagin g operation, and an exteriorswaging-block or follower having a beveled under surface correspondingwiththat of the swaging-ring, substantially as described.

8. A die for forming a double-seam joint at the top or bottom ofsheet-metal vessels, consisting of the combination of a base-piece orsupport, a hollow casing surrounding the vessel and having a recessedend, an interior block arranged above the recess, and an interiorcrimping or swaging block moving in and guided by the recess,substantially as de-.

scribed.

9. The combination, in a die for securing the bottoms to metal vessels,of a hollow casing having an annular inclined face y and a portionbeyond the said inclined face of greater diameter than the main portionof the casing, and a follower having an annular inclined face 20,adapted to support abottom having an edgefiange adapted to move in theenlarged end portion of the die-casing and an adjacent beveled portion,substantially .as set forth.

10. The combination of the hollow die-casing mounted upon yieldingsupports, a support for the metallic vessel, an exterior swaging-blockconstructed to bend and connect the edge of the metallic vessel to abottom, and an internal yielding sWaging-block, substantially as setforth.

11. A swaging-die provided with a two-part hollow casing adapted toreceive ametallic vessel and provided with a recess or recesses for thepassage of a handle or similar attachment, and a follower co-operatingwith the die-casing for crimping together the body of the metallicvessel and its bottom, substantially as set forth.

12. The combination, in asWaging-die, of a support for 'a metallicvessel, having an annular grooved bearing for the end of the body of themetallic vessel, a hollow die-casing provided with an annular inclinedface or shoulder y adjacent to the other end of the Vessel-body, and afollower or exterior swag:

ing-block having an annular inclined face 10, co-operating with the facey, substantially as set forth.

13. The combination of the die-casing recessed near one end, adetachable swagingring G, recessed interiorly and provided with anannular beveled edge y, fitting in the recessed portion of thedie-casing, and a follower H, provided with an inclined face w,substantially as set forth.

14.. The combination of the two-part diecasing E, recessed at its upperend, the detachable swaging-ring G, mounted in the recess of the casing,an exterior swaging-block or follower, and an interior swaging-blook D,arranged opposite the swaging-ring, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES R. PADDACK. Witnesses:

ETHAN R. CLARKE, A. S. LONGLEY.

